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57130468 = 2214282617
BaseRepresentation
bin1101100111101…
…1110111100100
310222111112021021
43121323313210
5104111133333
65400300524
71262413063
oct331736744
9128445237
1057130468
112a280a6a
1217171744
13bab3b15
1478321da
15503782d
hex367bde4

57130468 has 6 divisors (see below), whose sum is σ = 99978326. Its totient is φ = 28565232.

The previous prime is 57130439. The next prime is 57130471. The reversal of 57130468 is 86403175.

It can be written as a sum of positive squares in only one way, i.e., 56670784 + 459684 = 7528^2 + 678^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7141305 + ... + 7141312.

Almost surely, 257130468 is an apocalyptic number.

It is an amenable number.

57130468 is a deficient number, since it is larger than the sum of its proper divisors (42847858).

57130468 is a wasteful number, since it uses less digits than its factorization.

57130468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14282621 (or 14282619 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 57130468 is about 7558.4699509888. The cubic root of 57130468 is about 385.1435187649.

The spelling of 57130468 in words is "fifty-seven million, one hundred thirty thousand, four hundred sixty-eight".

Divisors: 1 2 4 14282617 28565234 57130468